CVE-2011-0943

Name: CVE-2011-0943
Creator: NVD / NIST
Published: 2011-05-31T20:55:01.843+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.21%

Last modified Jun 16, 2026

CVE-2011-0943 is a vulnerability of currently unknown severity. Cisco IOS XR 3.8.3, 3.8.4, and 3.9.1 allows remote attackers to cause a denial of service (NetIO process restart or device reload) via a crafted IPv4 packet, aka Bug ID CSCth44147.. EPSS estimates a 1.21% chance of exploitation in the next 30 days.

Description

Cisco IOS XR 3.8.3, 3.8.4, and 3.9.1 allows remote attackers to cause a denial of service (NetIO process restart or device reload) via a crafted IPv4 packet, aka Bug ID CSCth44147.

Metrics

EPSS Probability

1.21%

64.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Cisco	Ios Xr	3.8.3
Cisco	Ios Xr	3.8.4
Cisco	Ios Xr	3.9.1

References

http://www.cisco.com/en/US/products/products_security_advisory09186a0080b7f18e.shtmlVendor Advisory
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b7f18e.shtmlVendor Advisory

Timeline

Published: May 31, 2011
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-0943?

Cisco IOS XR 3.8.3, 3.8.4, and 3.9.1 allows remote attackers to cause a denial of service (NetIO process restart or device reload) via a crafted IPv4 packet, aka Bug ID CSCth44147.

How severe is CVE-2011-0943?

Severity scoring for CVE-2011-0943 is pending analysis. The EPSS model estimates a 1.21% probability of exploitation in the next 30 days.

How do I fix CVE-2011-0943?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-0943?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST